ByteInputStream.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.xml.internal.messaging.saaj.util;

import java.io.ByteArrayInputStream;
import java.io.IOException;

// This class just gives access to the underlying buffer without copying.

public class ByteInputStream extends ByteArrayInputStream {
    private static final byte[] EMPTY_ARRAY = new byte[0];

    public ByteInputStream() {
        this(EMPTY_ARRAY, 0);
    }

    public ByteInputStream(byte buf[], int length) {
        super(buf, 0, length);
    }

    public ByteInputStream(byte buf[], int offset, int length) {
        super(buf, offset, length);
    }

    public byte[] getBytes() {
        return buf;
    }

    public int getCount() {
        return count;
    }

    public void close() throws IOException {
        reset();
    }

    public void setBuf(byte[] buf) {
        this.buf = buf;
        this.pos = 0;
        this.count = buf.length;
    }
}